Gas-burner and automatic cut-off therefor.



N0. 841.400. PATENTED JAN. 15, 1907.

' L. HOLTSGHNEIDBR.

GAS BURNER AND AUTOMATIC GUT-OPP THEREFOR. APPLICATION FILED APR. 27,1906.

In we??? la 710i fie 7172M) WITNESSES v A TTORNE Y.

IINITED STATES PATENT OFFICE. LEO HOL'l SCHNEIDER, oi JEFFERSON-CITY,Mrssouiu.

Y GAS-BURNER AND Au'romA'rlc OUT-OFF THEREFOR.

To all whom it may concern.-

Be'it known that I, LE HOLTSCHNEIDER, a citizen of the United States,residing at Jefierson City, county of Cole, and State of Missouri, haveinvented a certain new and useful Improvement in Gas-Burners andAutomaticCut-Ofl's Therefor', of which the following is a specification.

My invention relates to a new and useful improvement in gas-burners andautomatic cut-oifs-therefor, and has for its ob'ect to provide anexceedi ly simple and e ective device of this description whichabsolutelyprevents the escape of gas ii -quantities sufficient to dodamage should the light become extinguished.

-With these ends in view this invention consists in the details ofconstruction and combination of elements hereinafter set' forth and thenspecifically designated by the claims.

In order that those skilled in. the art to which this inventionappertains may understand how to make and use the same, the constructionand operation will 110w be described in detail, referring to theaccompanyg drawings, forming a part of this specification, -in which YFigure 1 is a section of my improved burner; Fig. 2, a vertical sectionthereof, taken at the line a: a: of Fig. 1; Fig. 3, a section at theline y y of Fig. 1; Fig. 4, a detail view of. the base, a portionofwhichis sectioned away; Fig. 5, a lan view of said.base; Fig. 6, a detailview 0 the thermostat.

-In carryi out my invention as here-embodied, A rd p nesents the base,rovided with the screw-threads B for attac ent to the gas-fixture in the.usual manner," and C is the pillar, whichis adapted to fit-over thebase 'and secured thereto by means of the setscrew'D. The base hasformedin its upper end a concave recess E, and an opening F passesthrough-this concave section slightly to one side of the center-of thebase for the p osehereinafter set forth.

I' l he groove G is formed around the base, and ahole H leads from saidgroove .to-t-he interior thereof in order thata smallamount .of gas mayflow-from the interior of the base to this oove and from thence throu hthe passage to reach the interior of the p' ar Q, 1

a and I tprovide a reg'ulating-screwil, the inner end 0 which;approximately fills the cross- Specification of Letters Patent.Application filed April 27,1906 Serial No. 313,935.

'as silversolder (indicated at a) and .steel, (invhole H and passa e Ito the interior of the Patented Jan.'15, 1907.

section of this passage I, so that by adjust' said screw more or lessgas will be permitte to flow through said passage.

K is a ball, made ofany suitable material,- placedu on the concavesurface of the base." This ba normally rests over the opening F, thusclosing the principal flow of thegas from the base ,to the pillar. i

L is a thermostat, which is made of two metals of different expansiveproperties, such natesin-the plate M, which is of some material thatreadily absorbs heat, and this plate is secured in the tip-N, the latterbeing of a material of low heat-conducting power, having a slot 0 forthe issuance of the gas for forming the blaze. 1 i Whenl he gas is shutofl at the stop-valve, the ball will rest upon the ogening F; but whenthe gas is turned on the st action will be for a small portion to flow'through the pillar and from t ence escape through the slot 0, from whichpoint it may be lighted, and the burning of this small flame willtransmit suflicient heat to the plate M to so afiect the thermostatas'to cause it to force the ball from off the opening F, thus allowingthe Y full flow of as to reach the slot 0 and produce the size l'flame.become extinguished accidentally, the immediate cooling of thethermostat will permit the'ball to again close the passage F thereof,shutting as the main flow of gas, the only escape being through the holeH and passage I, which is not suflicient to. do any damage.

Should the hght' i The construction of the thermostat is such that it isself-compensating, so that the lower end is the'same distance fromtheball in either warm or cold surroundings.

The action of the tlfermostat u on the around the base, fwhich'may beaccomplished ball may be varied byadjusting t e pillar 2 eaneoo bybacking ofi the set-screw D and resetting it when the proper adjustmentis had, it bemg understood that the turning of the pillar relative tothe base willvary the position of the opening F relative to the lowerend of the thermostat, and as the ball normally rests over this openingit follows that its normal position will also be varied relative to thelower end of the thermostat and this adjustment will cause thethermostat to act more quickly upon the ball.

P represents the sponge or other suitable material located the base forfiltering the gas in its passage to the pillar.

Having thus fully described my invention, what I claim as new anduseful-is- 1. The hereirrdescribed combination of a base threaded forapplication to a gasfixture, said base having an upper concave surfaceand an opening through said surface 05 the axial line, said base alsohaving a groove around its circumference and a hole leading from theinterior thereof to said groove, a pillar adjustably fitted to saidbase, means for holding said pillar in any adjustment; said pillarhaving a passage-way leading from the groove in the base to the interiorof the pillar, a regulating-screw, the end of which crosses saldpassage, a ball adapted to normally close the openin in the concave surface,fa-tip secured to t e pillar, said tip being of low-heatconductingmaterial, a plate of high-heatconducting material secured to the tip anda thermostat consisting of two kinds of metal of difierent expandingqualities.

,2. In combination with a burner of the character described, athermostat consisting of a plate of high-heat -cond ucting qualities andtwo strips of metal of difierent expanding qualities extending side byside .for a certain distance and then being reversed for the remainderof their length, as and for the purpoes set forth.

3. in combination with a burner of thecharacter described, a base havinga con- .caved upper surface and, a hole formed through the same, a balladapted to rest upon the concaved surface and close the holetherethrough, a thermostat consisting of a highheat-conducting platesecured to the tip of the burner and two metal strips extending downwardfrom said plate lying side by side LEO HOLTSCHNEIDER.

Witriessesz.

' LEoNARnRroE,

F. W. Row.

